Author Topic: Resurrection of a Lister 12/2  (Read 88885 times)

dieselspanner

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Re: Resurrection of a Lister 12/2
« Reply #105 on: October 24, 2018, 09:12:38 PM »
I'm rarely the one to say 'You're wrong' but this time I must!

Ignorance is lack of knowledge, it will eventually cause wisdom - See several of Terry Pratchett' books.

The days of everything being made to a particular specification went along with the British motor cycle industry, as long as the thread of the replacement bolt conforms to whatever relic one is trying to maintain / rebuild what matters the distance 'across the flats' of the hexagonal bits? If there's nothing else to hand then I'll re drill and re tap to suit with whatever I've got to hand. Keeping it all running is paramount, IMHO.

If you want concourse, then there are endless motorcycle and car events every summer, for the ultimate 'gong hunter' you can even take your classic car or bike to the - long forgotten - site of the original works and fill the tyres with 'Factory Fitted Air'

And the 'Stupid' are going to cock it up anyway........

Cheers
Stef

Tighten 'til it strips, weld nut to chassis, peen stud, adjust with angle grinder.

ajaffa1

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Re: Resurrection of a Lister 12/2
« Reply #106 on: October 24, 2018, 10:19:09 PM »
Hey Stef, my frustration with this is that I used to be able to determine if a thread was metric or imperial by the size of the nut/bolt head. I now have to spend twice as long mucking about with micrometers and thread gauges.

Please don`t get me onto pipe fittings, especially hydraulic and pneumatic fittings. AAARRGG  :laugh:

Intelligence is the ability to learn from ones own mistakes, wisdom is the ability to learn from the mistakes of others.

Bob

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #107 on: October 25, 2018, 12:20:11 AM »
Hi Bob

We must have enough white hair to not cut wrists. Leave the fustrations and rejoice in being able to vent with half a dozen boys from the rest of the world.

As the other said the mistakes are the bill that wasn't paid at school. But now what counts is that we can make a mistake and start all over again.

It only costs money? less cigarettes to burn or diamonds that ex-wifes never deserved.

And the children are happy because they realize that we still do not have Alzheimer's (it's better than Parkinson, because with Parkinson you turn your glass of good wine to the ground, and with Alzheimer's you drink and forget to pay).

Intelligence or wisdom are synonymous that we refuse to stop learning ...

Cheers to ALL
VP

ps: minor corrections...
« Last Edit: October 25, 2018, 02:47:32 AM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #108 on: October 27, 2018, 09:58:27 PM »
Hi Folks

Another day scraping rust and scale, o'rings are clean, wrist pins are fitted and fine tuned. The pile is growing...

Cheers
VP
« Last Edit: August 25, 2019, 02:53:48 PM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #109 on: October 28, 2018, 01:56:49 AM »
Updating...

Does anyone know how to remove the main plug from VOC when the head has already been removed from the cylinder, as red pointed in the pic.

BR
VP
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

mikenash

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Re: Resurrection of a Lister 12/2
« Reply #110 on: October 28, 2018, 02:08:08 AM »
Mine was so seized in place I drilled a M12 hole through it, made a puller, dragged it out and just bought a new part

guest23837

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Re: Resurrection of a Lister 12/2
« Reply #111 on: October 28, 2018, 08:13:47 AM »
I see the prices in that photo are in pounds shillings and pence I somehow doubt the modern moronic shop assistant could cope with that currency and the alternative names for some things like a tanner, a bob, a guinea or half a crown. Decimal currency is definitely easier to count but back in the day 12 pence = one shilling was easy. If you had a few pennies in your pocket you felt good now in Ireland a €50.00 bill is regarded as pocket change.

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #112 on: October 28, 2018, 12:21:57 PM »
Mine was so seized in place I drilled a M12 hole through it, made a puller, dragged it out and just bought a new part

Hi Mikenash

I can not afford that luxury, I have to save as many pieces as I can. "Money is veeery exxxpensive!"

Even though I have to clean them when the engine is already fully assembled and working, and do as they say in the manual.

But I'm sure someone knows a good way to extrat it.

BR
VP
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

Hugh Conway

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Re: Resurrection of a Lister 12/2
« Reply #113 on: October 28, 2018, 07:10:29 PM »
Sirpedrosa:
We tried all kinds of things to remove the plug. first the recommended methods. No Joy. Then  few creative but non destructive ways........still no joy. Heat did not work, even threading and using a puller did not work. We ended up destroying it then buying a replacement. Maybe just leave it alone if your does not come out easily and you do not want to purchase a new one.
Cheers,
Hugh
JKson 6/1  (Utterpower PMG ) Off-grid
Lister 6/1 Start-O-Matic engine......running with PMG
1978 Royal Enfield (glutton for punishment by Indian iron)
1963 BMW R-27 project

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #114 on: October 28, 2018, 09:15:02 PM »
Hi Everyone

One Sunday afternoon continuing the 12/2 restoration:

Withdraw the remaining studes - it took some imagination! but not even the stubborn ones were hypothesized.

Remove some more rust and limestone in water jackets... with special tools!
« Last Edit: August 25, 2019, 02:57:52 PM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #115 on: October 28, 2018, 09:16:09 PM »
Soften the pistons ...
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #116 on: October 28, 2018, 09:18:33 PM »
Measuring clearances:

Left Piston: Skirt - 0.10mm (0.0039 ") Head 0.20mm (0.0078").
Right Piston: Skirt - 0.10mm (0.0039 ") Head 0.25mm (0.0098").

I think these measurements are within the normal parameters...
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

sirpedrosa

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Re: Resurrection of a Lister 12/2
« Reply #117 on: October 28, 2018, 09:21:37 PM »
One last question - I ask the opinion of the forum - is this "callus" of the pistons in the opposite side of the valves is normal? see figure.

Good weak
VP
« Last Edit: October 28, 2018, 10:21:40 PM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

ajaffa1

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Re: Resurrection of a Lister 12/2
« Reply #118 on: October 28, 2018, 09:35:01 PM »
Hi Pedrosa, I have two questions. The first is: what position are they stuck in, where the COV handles screwed in as for starting or out as for running? The reason I ask this is that it is a lot easier to free up a stuck plug by driving it in rather than trying to pull it out.

My second question is why do you want to pull them out? I think that the first run of your engine will probably free them, a mixture of heat and the shock wave from fuel detonating.

In my case the entire COV assembly has had to be replaced as the threads were damaged. I also made up a puller to remove the old plug, destroying it in the process.

DEV Precision, in India make new COV assemblies they would probably just sell you the plugs if you asked nicely. Alternatively ask your local machine shop to make you a pair, they are only made of mild steel and could be turned up on a lathe in ten minutes.

Bob

ajaffa1

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Re: Resurrection of a Lister 12/2
« Reply #119 on: October 28, 2018, 09:42:02 PM »
Hi Pedrosa, wear above the top piston ring is very common, it is generally caused by a build up of carbon and is usually accompanied by wear in the top of the cylinders. A lot of people now use water injection to prevent these carbon deposits from building up.

Bob